JPH0315577Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention assists the flight of a weft inserted into a weft guide passage formed by a large number of weft guide members arranged in parallel on a slay using a jet of fluid. Hopefully,
The present invention relates to a device for adjusting the spray height position of a plurality of auxiliary nozzles provided along the guide passage.

PRIOR ART In general, in a fluid injection type loom, a plurality of auxiliary nozzles are provided at appropriate intervals along the guide path in order to assist the flight of the weft yarn injected from the main nozzle into the weft guide path. measures are being adopted. The fluid jetted from the nozzle not only assists the flight of the weft threads, but also affects the stabilization of the weft flight, which in turn affects the quality of the woven fabric. Therefore, it is necessary to appropriately adjust the jetting conditions from the auxiliary nozzle and set the optimal weft insertion conditions.
Therefore, in the past, in order to set the injection hole of the auxiliary nozzle at the height position of the injection from the auxiliary nozzle that affects the flying state of the weft yarn, that is, at an appropriate position upward from the slay, a support fixed to the slay was used. An auxiliary nozzle is provided on the block so that its position can be slid in the vertical direction, and the ejection height position is adjusted as appropriate depending on weaving conditions such as the type of weft and the width of the woven fabric.

However, this injection height position adjustment is done by using a jig to adjust the position of each auxiliary nozzle in the vertical direction, so it is necessary to turn up the woven fabric toward the reed and hide the auxiliary nozzle with the warp. This adjustment work must be performed in the released state, which is very complicated and difficult. Furthermore, the large number of auxiliary nozzles used (usually up to several dozen) also leads to long hours of work.

Furthermore, the method of adjusting the auxiliary nozzles one by one tends to cause variations in the spray height position of each nozzle.

Purpose The present invention was developed while considering the above-mentioned problems, and its purpose is to be able to adjust the spray height positions of all auxiliary nozzles or a group of them simultaneously and without variation, and to An object of the present invention is to provide an apparatus for adjusting the height position of an auxiliary nozzle in a fluid injection type loom, which enables the adjustment work of the injection height position without the need to remove the auxiliary nozzle from its concealed state.

Configuration In order to achieve the above-mentioned object, the present invention provides each auxiliary nozzle on the slay so that its position can be adjusted in the vertical direction, and also provides a auxiliary nozzle that is movable only when adjusting the setting of the spray height position of each nozzle. A height position setting mechanism is provided in the sleigh, and at least one group of the plurality of auxiliary nozzles and the setting mechanism are linked by one transmission member.

Embodiment Hereinafter, an embodiment embodying the present invention will be explained based on the drawings.A reed 2 having a function of guiding the weft yarn Y ejected from a main nozzle (not shown) is erected on the slay 1. There is. In other words, reed 2
A large number of reed blades 3 forming the loom are provided with guide holes 3a that are open on the front side of the loom (lower side in FIG. 1), and a weft guide path S is formed by a row of the holes 3a.

A plurality of support blocks 4 are fixed to the front surface of the slay 1 in correspondence with the reed 2 at appropriate intervals so that their mounting positions can be adjusted, and on the blocks 4, rod-shaped auxiliary nozzles 5 are slidable in the vertical direction. Possibly inserted. The injection hole 5a provided at the tip of the nozzle 5 is arranged near the weft guide passage S, and the injection fluid from the injection hole 5a is directed to the guide passage S.
It is designed to assist the flight of the weft yarn Y inserted inward. The auxiliary nozzle 5 is always tightened and fixed by a screw 20 screwed into the front surface of the support block 4 so that it cannot slide vertically.

A holder 6 is fixed to the base end of the auxiliary nozzle 5, and a rail 7 whose both ends are supported by a pair of height position setting mechanisms 8, which will be described later, is in contact with the lower surface of the holder 6. Therefore, the downward movement of the auxiliary nozzle 5 is restricted by the rail 7 even when the screw 20 is released.

A pair of height position setting mechanisms 8 are provided on the front surface of both ends of the slay 1 to adjust the spray height position (indicated by H in FIG. 2) of the auxiliary nozzle 5.
is provided. Both setting mechanisms 8 include a support block 9 fixed to the slay 1, a set screw 10 screwed through the block 9 in the vertical direction, and a fixing nut 11 screwed to the screw 10 on the upper surface of the support block 9. and a pair of set nuts 12 and 13 for attaching and fixing the end of the rail 7 to the set screw 10 below the support block 9.

Next, a procedure for adjusting the ejection height position of the auxiliary nozzle 5 will be explained.

Now, the ejection height position of the auxiliary nozzle 5 is set to H as shown in FIG. To change the ejection height position of the auxiliary nozzles 5 in accordance with changes in weaving conditions, first loosen the screws 20 of each auxiliary nozzle 5 so that the auxiliary nozzles 5 can be slid vertically relative to the support block 4. do. If the height position of the injection hole 5a is to be higher than H, the set nut 12 of the height position setting mechanism 8 is rotated to a predetermined upper position, and then the set nut 13 is rotated upward. 7 is lifted upward by a predetermined amount ΔH as shown by the chain line in FIG. 3 and fixedly supported, and all the auxiliary nozzles 5 are slid upward by ΔH. If the injection height position is to be lower than H, the set nut 13 is rotated to a predetermined lower position, and the rail 7 is moved to the same position as the set nut 13.
At the same time, all the auxiliary nozzles 5 are slid downward by a predetermined amount. Then, by rotating the set nut 12 downward, the rail 7 is fixedly supported.

After setting the injection height position, tighten the screw 20 to complete the injection height position change operation.

According to this embodiment, the injection height position of each auxiliary nozzle 5 can be changed at the same time by simply rotating the set nuts 12 and 13 with the screw 20 loosened. Therefore, there is no need to adjust the injection height position of each of the auxiliary nozzles 5 one by one. Therefore, the working time for changing the spray height position is shortened, and the operating efficiency of the loom is improved. In addition, tightening and loosening of the screws 20 and set nuts 12 and 13 can be performed without any problem even when warp threads are present, so there is no need for the troublesome work of turning up the woven fabric toward the reed side and releasing the state in which the auxiliary nozzle is concealed by the warp threads. There is no need to perform the work, and the work time can be further shortened.

Furthermore, since the amount of change in the injection height position of each auxiliary nozzle 5 is all the same, there is no variation in the injection height position among the auxiliary nozzles 5.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and examples shown in FIGS. 4 to 6, for example, are possible.

In this embodiment, instead of the rail 7, support brackets 1 are fixed to the front surface of both ends of the sleigh 1.
4 and a rod-shaped cam body 1 rotatably supported by a support block 15 forming a height position setting mechanism 21.
6 is used, and the cam body 16 has a portion corresponding to the reed 2 formed into a cam surface with a substantially elliptical cross section. A worm 17 having a hexagonal hole 17a is rotatably fitted into the upper surface of the block 15 that supports one end of the cam body 16 on the weft insertion side, and a pair of arm portions 1 provided at the front of the block 15
The worm 17 is normally fixed by a screw 21 screwed together between 5a and 15b so that it cannot rotate. Further, a wall wheel 18 is fixed to the cam body 16 between the arm portions 15a and 15b, and is in mesh with the wall 17. Note that 19 is a scale for setting the injection height position provided on one side of the arm portion 16a.

To change the spray height position of the auxiliary nozzle 5,
Loosen the screws 20 and 21 of each auxiliary nozzle 5,
In this state, a hexagonal wrench is inserted into the hexagonal hole 17a to rotate the worm 17. Then, worm 17
The cam body 16 is rotated based on the meshing relationship between the worm wheel 18 and the worm wheel 18, and the cam body 16 and the holder 6 are rotated.
The auxiliary nozzle 5 is slid in the vertical direction by the cam action. After setting the injection height position, tighten the screws 20 and 21 to complete the injection height position change operation.

In this embodiment, as in the previous embodiment, the work time for changing the spray height position is shortened, the operating efficiency of the loom is improved, and there is no need to release the auxiliary nozzle concealment state by the warp threads. .

In addition, a large number of auxiliary nozzles 5 are divided into two groups on the left and right, and height position setting mechanisms 22 are provided at both ends of the slay 1, so that the ejection height positions of the auxiliary nozzles 5 in the two groups on the left and right can be adjusted by both setting mechanisms 22. It is also possible to set them independently of each other, and in this way, the weft insertion state in the first half of weft insertion and the second half of weft insertion can be controlled more appropriately.

Furthermore, the present invention can also be implemented in a loom in which a weft guide path is formed by a large number of weft guide members arranged in parallel facing the reed.

Effects As detailed above, the auxiliary nozzle height position adjustment device of the present invention can set the jetting height positions of multiple auxiliary nozzles at the same time, and during this setting work, the auxiliary nozzle is hidden by the warp. Coupled with the elimination of the work of releasing the auxiliary nozzles, the work time can be shortened, and this has the excellent effect of improving the operating efficiency of the loom and suppressing variations in the spray height positions of each auxiliary nozzle.

[Brief explanation of the drawing]

1 to 3 show an embodiment embodying the present invention, and FIG. 1 is a partially omitted plan view showing the entire sleigh;
Fig. 2 is an enlarged cross-sectional view taken along the line A-A in Fig. 1, Fig. 3 is an enlarged cross-sectional view taken along the line B-B in Fig. 1, Figs. 5 is an enlarged sectional view taken along the line CC in FIG. 4, and FIG. 6 is an enlarged sectional view taken along the line DD in FIG. 4. Slay...1, Auxiliary nozzle...5, Holder...
6. Rail 7 and cam body as transmission members...1
6, Height position setting mechanism...8,22, Weft...
Y.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In order to assist the flight of the weft yarn inserted into the weft yarn guide path by means of jetting fluid, a plurality of auxiliary nozzles are set at predetermined jetting height positions along the guide path. In a fluid injection type loom installed at 1. A height position adjustment device for an auxiliary nozzle in a fluid jet loom, characterized in that a position setting mechanism is provided in the sleigh, and at least one group of the plurality of auxiliary nozzles and the setting mechanism are linked through one transmission member. 2. The transmission member is a rail that comes into contact with the lower surface of the holder fixed to the base end of the auxiliary nozzle, and the height position setting mechanism has a support block fixed to the front surface of the slay, and It consists of a set screw screwed through in the direction, a fixing nut for tightening and fixing the screw to the support block, and a pair of set nuts for tightening and fixing the rail to the set screw, A height position adjustment device for an auxiliary nozzle in a fluid jet loom according to claim 1, which is provided at both left and right ends of a sleigh. 3 The transmission member is a rod-shaped cam body that comes into contact with the lower surface of the holder fixed to the base end of the auxiliary nozzle, and the height position setting mechanism is connected to a support block fixed to the front surface of the sleigh and the support block of the same block. The worm wheel is comprised of a worm rotatably fitted from the top surface and a worm wheel fixed to the cam body between a pair of arms of the support block that rotatably supports one end of the cam body. A height position adjustment device for an auxiliary nozzle in a fluid jet loom according to claim 1 of the registered utility model.